Bug 2446622 - [Lenovo] Backporting Intel graphics driver panel_replay fixes for 2026 platforms
Summary: [Lenovo] Backporting Intel graphics driver panel_replay fixes for 2026 platforms
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 43
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Justin M. Forbes
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-11 17:59 UTC by Mark Pearson
Modified: 2026-03-14 02:23 UTC (History)
14 users (show)

Fixed In Version: kernel-6.19.7-300.fc44 kernel-6.19.7-200.fc43 kernel-6.19.7-100.fc42
Clone Of:
Environment:
Last Closed: 2026-03-14 00:16:49 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Mark Pearson 2026-03-11 17:59:39 UTC
1. Please describe the problem:
Some of the Lenovo 2026 platforms have hit issues with specific panels where panel_replay does not work correctly.
This has been fixed by Intel upstream so looking to backport the fixes into the 6.19 kernel for inclusion in the Fedora preloads for those systems.

This bug is to track the fixes - I'll submit a MR to kernel-ark shortly (just wrapping up testing)

List of commits needed:
f861e54 - Add-panel-granularity-information-into-
1cc85464 - psr-Use-SU-granularity-information-availabl
5a423626 - Compute-Panel-Replay-Adaptive-Sync-coex
8d251442 - Move-pr_dpcd-and-psr_dpcd-to-intel_conn
a7e427ff - Clear-pr_dpcd-as-well-on-disconnect
93bba79e - Move-Panel-Replay-DSC-sink-support-data
2691ec67 - Move-sink-PSR-and-Panel-Replay-booleans
11bbc345 - Move-sink_sync_latency-to-intel_connect
1f5df537 - Set-plane-id-bit-in-crtc_state-async_fl
e540c47f - Perform-full-frame-update-on-async-flip
d400dad6 - display-Allow-async-flip-when-Selective-Fet
ace7dcc8 - Add-definition-for-Panel-Replay-full-line-gra
a99cac46 - Fix-for-Panel-Replay-X-granularity-DPCD

I reviewed the patch list with the Intel engineer who wrote them to confirm complete.
Tested on a T14 G7 Intel.

2. What is the Version-Release number of the kernel:
7.0

3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :
No

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:
Yes

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:
Didn't test - but it's fixed in 7.0-rc3 so probably not.

6. Are you running any modules that not shipped with directly Fedora's kernel?:


7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.

Comment 1 Fedora Update System 2026-03-12 21:11:36 UTC
FEDORA-2026-b9bd91408a (kernel-6.19.7-300.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-b9bd91408a

Comment 2 Fedora Update System 2026-03-12 21:11:52 UTC
FEDORA-2026-21a28a358f (kernel-6.19.7-100.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-21a28a358f

Comment 3 Fedora Update System 2026-03-12 21:12:07 UTC
FEDORA-2026-2f3dbc95bc (kernel-6.19.7-200.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-2f3dbc95bc

Comment 4 Fedora Update System 2026-03-13 01:38:52 UTC
FEDORA-2026-b9bd91408a has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-b9bd91408a`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-b9bd91408a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-03-13 02:03:33 UTC
FEDORA-2026-2f3dbc95bc has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-2f3dbc95bc`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-2f3dbc95bc

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-03-13 02:25:22 UTC
FEDORA-2026-21a28a358f has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-21a28a358f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-21a28a358f

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Mark Pearson 2026-03-13 13:28:00 UTC
Confirmed fixes the issue on my system.
Will close this once released.

Comment 8 Fedora Update System 2026-03-14 00:16:49 UTC
FEDORA-2026-b9bd91408a (kernel-6.19.7-300.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-03-14 02:19:47 UTC
FEDORA-2026-2f3dbc95bc (kernel-6.19.7-200.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-03-14 02:23:03 UTC
FEDORA-2026-21a28a358f (kernel-6.19.7-100.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.


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